Improvement in sand-ejectees



E. W. POSTON.

SAND HECTOR.

No. 67,580. Patented Aug. 6, 1867.

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ELISHA W. POSTON. OF FORT WAYNE, INDIANA...

Letters Patent No. 67,580, dated August 6, I867 anteda-teti August 1, 1867.

IMPROVEMENT IN .SAND-EJBGTERS.

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TO ALL WHOM IT MAY CONCERN: 7

Be it known that I, ELISHA W. Posrox, of Fort'Wayne, in the county of Allen, and Stateof Indiana, have invented .certain-newand useful Improvements in Apparatus for Distributing Sand for painting purposes; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being bad to theaceompanying drawings, and to the letters of reference marked thereon. In the drawings- Figure I is a sectional View taken in line yy.

Figure 2 is a plan view, sectioned inline 2: 0:.

Like letters refer to like parts in the respective figures.

The nature of my invention consists in the construction of an apparatus for the purpose of projecting sand on to freshly painted surfaces, ahd evenly distributing the same.

To enable others skilled in the arts to make and use my invention, I will now proceed to describe its construction and operation.

A represents a metallic cylinder, of a suitable length and diameter.

13 B are heads, which are fitted into the upper and lower ends of cylinilciwl. ,Head B' is 'pcrl'orated at a u. Said perforations are provided with valves 5 bier the purpose 'of admitting and retaining air.

C isa disk, which fits snugly into the cylinder near the top of the same. This disk is also perforated at the centre 0, and is provided with a valve, d, nlso i'or the purpose of admitting and retaining air;

D is atube, which is inserted in perforation e, and extends upward ashort distance, for the purpose of preventing sand from passing into the cylinder and causing friction on the packing. Air is admitted into the cylinder, above the disk 0, through perforations f.

E represents a piston, which operates in the cylinder A. Said piston is composed of two disks, g and it, secured together, and having between them a ring of packing, i, so positioned as to completely prevent the passage of air. Each of said disks g and his perforated, as seen at I: It It" 1:, and is provided with valves ZZZ-Z. \Vhcn said disks are secured together they are so constructed as to form a chamber, in, into which he air passes throughthe valves when the piston is in operation.

F is a tube, which is secured to the piston-head and acts as a piston-rod. This rod or tube passes through the lower head, and connects with an elastic .pipe at 71., and also with a stirrup or foot-piece, o. Said tube, at its upper end, communicates with the air-chamber m, and allows the air, when compressed by the operation of the apparatus, to pass through the valves, and thence through the said piston-rod or tube, into theelastic tube to the sand-distributor, which operation is eilected by the operator placing one foot in stirrup o and taking the handle? in his hand, and imparting a reciprocating motion to the cylinder, the piston-rod and head standing still.

G-is the sand-distributor, tvhich is made of sheet metal, as follows: H is a cylindrical tube, which connects with the elastic pipe, and conducts the air into the sand-distributor in a direction at right anglcs with the plates of the same. I is a hopper where the sand is held, and from whence the sand is fed to the distributor through small perforations at the bottom. L is the distributor, which consists of twoplatcs oi thin sheet metal, formed as seen in the drawings, so as to spread the sand asit is forced by the current of air between the plates.

when the apparatus is in operation, the blast enters the distributor vertically, and is then deflected at right angles between the plates. and thus scatters the sand equally in every direction permitted by the form of the distributor.

What I claim as new, and desire to secure by Letters Patent, 1sv 1. I claim cylinder A and heads B B,'i'n combination with piston '11] and piston-rod F, the whole being arranged and constructed in the manner and for the purpose described.

2. In combination with the above, I claim the bent tube II, in combination with the distributing-plates L and feeder I, all being constructed and arranged substantially as described and set forth.

E. W- POSTON.

Witnesses H. F. WILLsoN, WILLIAM L. GERARD. 

